Small Intestinal Adenocarcinoma with Bilateral Metastatic Ovarian Tumors—A Case Report—

Abstract

A 44-year-old woman diagnosed with bilateral ovarian tumors underwent left salpingo-oophorectomy and right ovarian cystectomy. Bilateral ovarian tumors were diagnosed as primary ovarian mucinous adenocarcinoma [CK7(+), CK20(+), CDX2(-), ERα(-)], because computed tomography and upper and lower gastrointestinal endoscopy could not identify another lesion. However, intraoperatively, we detected a small intestinal tumor, and partial resection of the small intestine was performed. Histopathological examination of the resected tumor showed findings resembling those of ovarian adenocarcinoma, and the small intestinal tumor was diagnosed as ovarian metastasis of small intestinal adenocarcinoma. She developed recurrent peritoneal dissemination within 2 years postoperatively, necessitating radical Hartmann's operation with resection of peritoneal dissemination and partial resection of the small intestine. Until the time of writing this report, she has not shown recurrence for 4 years and 2 months since her initial surgery. We report a rare case of recurrence-free long-term survival in a woman with ovarian adenocarcinoma, despite the known poor prognosis of this malignancy. We have additionally described the histopathological presentation of this tumor.